Rearrangement of pyrrolo[2,1-c][1,4]benzodiazepines into cyclopenta[b][1,4]benzodiazepines under microwave or conventional heating conditions
摘要:
Microwave or conventional heating of 2-hydroxy or 2-oxo-pyrrolo[2,1-c][1,4]benzodiazepinediones in boiling phosphoryl chloride led to cyclopenta[b][1,4]benzodiazepines. (C) 1997 Published by Elsevier Science Ltd.
The solid-phase synthesis of DNA-interactive pyrrolo[2,1-c][1,4]benzodiazepine (PBD) imines and biologically important pyrrolo[2,1-c][1,4]benzodiazepine-5,11-diones on Wang resin using a reduction/cyclization procedure is reported.
DNA相互作用的吡咯并[2,1- c ] [1,4]苯并二氮杂(PBD)亚胺和生物学上重要的吡咯并[2,1- c ] [1,4]苯并二氮杂5,11-二酮的固相合成据报道,使用还原/环化程序对王树脂进行了分析。
Synthesis of novel benzo[<i>h</i>] [1,6]naphthyridines<i>via</i>a rearrangement of hexahydro-5<i>H</i>-pyrrolo [2,1 -<i>c</i>] [1,4]benzodiazepines
Heating of hexahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-2,5,11-trione in boiling phosphoryl chloride led to a rearranged product like 3,5-dichlorobenzo[h][1,6]naphthyridine. This structure was established from X-ray diffraction analysis.
在沸腾的磷酰氯中加热六氢-5 H-吡咯并[ 2,1- c ] [1,4]苯并二氮杂-2,5,11-三酮导致重排产物,如3,5-二氯苯并[ h ] [1, 6]萘啶。通过X射线衍射分析确定该结构。
Attachment of the anthramycin acrylamide side chain by the palladium catalyzed coupling reaction of a vinyl triflate
作者:Michael R. Peña、J.K. Stille
DOI:10.1016/s0040-4039(00)96916-8
日期:——
Synthesis of pyrrolo[2,1-c][1,4]benzodiazepines via an Intramolecular Aza-Wittig reaction. Synthesis of the antibiotic DC-81
作者:Pedro Molina、Isidora Díaz、Alberto Tárraga
DOI:10.1016/0040-4020(95)00222-t
日期:1995.5
A new and efficient synthesis of the pyrrolo[2,1-c][1,4]benzodiazepineringsystem has been carried out using, as a key step, an intramolecular aza Wittig reaction of the appropriately substituted N-(2-azidobenzoyl)pyrrolidine-2-carboxaldehydes. The parent unsubstituted PBD 4 and the natural product DC-81 have been prepared in the imine form in good overall yields.
使用适当取代的N-(2-叠氮基苯甲酰基)的分子内氮杂Wittig反应作为关键步骤,进行了吡咯并[2,1- c ] [1,4]苯并二氮杂ring环系统的新型高效合成。吡咯烷-2-羧醛。母体未取代的PBD 4和天然产物DC-81已以亚胺形式制备,并具有良好的总收率。
Rearrangement of pyrrolo[2,1-c][1,4]benzodiazepines into cyclopenta[b][1,4]benzodiazepines under microwave or conventional heating conditions
Microwave or conventional heating of 2-hydroxy or 2-oxo-pyrrolo[2,1-c][1,4]benzodiazepinediones in boiling phosphoryl chloride led to cyclopenta[b][1,4]benzodiazepines. (C) 1997 Published by Elsevier Science Ltd.